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Natalka [10]
3 years ago
11

What are the x-intercepts of the graph of the function f(x)=x2+ 4x-12

Mathematics
2 answers:
grin007 [14]3 years ago
7 0

x^2 + 4x-12 =0

factor

(x+6) (x-2)=0

x+6=0  x-2=0

x=-6  x=2

are the x intercepts

Answer -6, 2

s344n2d4d5 [400]3 years ago
5 0

Answer:

The points are (-6,0) and (2, 0)

Step-by-step explanation:

Given the function f(x)

f(x)=x^2+ 4x-12

we have to find the x-intercepts of the graph of function.

x-intercepts are the x-coordinate of a point where a graph of function intersects the x-axis i.e the value of x at which the value of y is 0.

Hence, to find x-intercept we have to put the value of y=0 in f(x)

x^2+ 4x-12=0

By middle term splitting method

x^2-2x+6x-12=0

Taking x common from first two terms and 6 from last two terms

x(x-2)+6(x-2)=0

(x+6)(x-2)=0

Using zero product property

⇒ (x+6)=0\text{ or }(x-2)=0

x=-6\text{ or }x=2

The points are (-6,0) and (2, 0)

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Citrus2011 [14]

Answer:

25.95 + 36

Step-by-step explanation:

You don't have any options so the answer I would say is 25.95 + 36, or the other way around.

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3 0
2 years ago
8X +6Y+4<br> Y=-3X+9<br> using substitution what numbers are the variables X and Y
Svetach [21]

Answer:

(5,6)

Step-by-step explanation:

8X +6Y=4

Y=-3X+9

Substitute the second equation into the first.  Every place you see y put -3x+9)

8x +6(-3x+9)=4

Distribute

8x-18x +54 = 4

Combine like terms

-10x +54 = 5

Subtract 54 from each side

-10x +54-54=4-54

-10x = -50

Divide by -10

-10x/-10 = -50/-10

x= 5

Now we need to find y

y = -3x+9

y = -3(5) +9

y = -15+9

y= 6

(5,6)

6 0
3 years ago
What is an expression that compares two or more numbers
Kazeer [188]
A ratio comparing two quantities measures in different units . An equation stating that two ratios or rates are equivalent. Percent proportion . One ratio or function compares part of a quantity to the whole quantity.
8 0
3 years ago
Plsssssss helppp ;w;w;
drek231 [11]

<u>Answer:</u>

Given below.

<u>Explanation:</u>

Coordinates given: W( -4, -3 ) , X( 1 , -2 ), Y(2, -7 ) , Z( -3, -8)

To find the distance we will use the formula: distance=√((x2-x1)²+(y2-y1)²)

WX = √((1--4)²+(-2--3)²)

      = √26

YZ = √((-3-2)²+(-8--7)²)

     = √26

XY = √((2-1)²+(-7--2)²)

     = √26

WZ = √(-3--4)²+(-8--3)²

      = √26

WY =  √(2--4)²+(-7--3)²

     = 2√13

XZ = √(-3-1)²+(-8--2)²

     = 2√13

7 0
2 years ago
Read 2 more answers
What is the P(T,H,T,H) on 4 flips of a coin?<br><br> i need help
Katen [24]

Answer:

1/16

Step-by-step explanation:

Each coin flip is an independent event so the probabilities are independent

P(T,H,T,H) = P(T) P(H)  P(T) P(H)

                  = 1/2 * 1/2 * 1/2 * 1/2

                   = 1/16

5 0
3 years ago
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